Preheat oven to 350°F. Place salmon fillets, skin-side-down in a baking dish coated with cooking spray. Bake in preheated oven for 8-10 minutes or until opaque and flaky. Set aside.
In a medium saucepan over low heat, mix together carrots, cream cheese, milk, dill, salt and pepper. Heat until cream cheese is melted. Stir in mozzarella and ¼ cup Parmesan until melted. Remove from heat. Remove ½ cup of mixture and reserve. In saucepan, add green onions, breadcrumbs and salmon fillets. Stir until well-mixed and salmon is broken into bite-sized pieces.
Place 2 tablespoons filling on the end of each lasagna noodle and roll up tightly. Place seam-side-down in an 11x13 baking dish coated with cooking spray. When all rolls are in dish, spoon reserved cheese mixture over rolls and top with remaining Parmesan. Bake in preheated oven for 20-25 minutes, or until cheese is bubbly.